What is your social security number and your co- applicant or spouse's social security number? Homestead Exemptions are available from the Palm Beach County Property Appraiser's Office.This exemption applies to all taxes, including school district taxes. How Does the Exemption Work? ✓ Learn here today! When to file: Application for all exemptions must be made between January 1 and March 1 of the tax year. The property that is the subject of the exemption must be the permanent residence of you or someone you can claim as a dependent on your taxes. 2.